The pigment ____ protects us from the harmful ultraviolet rays of the sun
a. melanin
b. elastin
c. keratin
d. reticulin
a
Anatomy & Physiology
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Which muscle is the prime mover for sticking your tongue out?
A. Buccinator B. Mentalis C. Hyoglossus D. Masseter E. Genioglossus
Anatomy & Physiology
Estrus in cats occurs for _____ days
a. 1-2 c. 5-7 b. 3-5 d. 15-21
Anatomy & Physiology
The first functional kidney is the ________.
A. mesonephros B. pronephros C. urorectal septum D. bulbus cordis E. allantois
Anatomy & Physiology
A neuron can receive thousands of EPSPs from different neurons, and responds by triggering or not triggering an action potential. This addition and response to the net effect of postsynaptic potentials is called ________.
A. temporal summation B. recruitment C. neuronal coding D. spatial summation E. neural summation
Anatomy & Physiology